MLK-17782 dma: fsl-edma-v3: fix issue reported by Coverity

MLK-17782 dma: fsl-edma-v3: fix issue reported by Coverity

Fix below issue reported by Coverity, actually, don't need this
condition check here, remove it.

CID undefined (#1 of 1): Wrong operator used (CONSTANT_EXPRESSION_RESULT)operator_confusion:
(16UL /* 1UL << 4 */) | (__u16)(__le16)tcd->csr is always 1/true regardless of the values of its operand.
This occurs as the logical first operand of "&&".

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>